Change class member variables in raw pointer type into unique_ptr

core/fpdfapi/fpdf_page/include/cpdf_formobject.h

Index: core/fpdfapi/fpdf_page/include/cpdf_formobject.h
diff --git a/core/fpdfapi/fpdf_page/include/cpdf_formobject.h b/core/fpdfapi/fpdf_page/include/cpdf_formobject.h
index 1a8db34e8f1faaff5a3429ff5b688f6dc7a3e913..03e117a132558d3cdca203db57019866a85e73d8 100644
--- a/core/fpdfapi/fpdf_page/include/cpdf_formobject.h
+++ b/core/fpdfapi/fpdf_page/include/cpdf_formobject.h
@@ -7,6 +7,8 @@
 #ifndef CORE_FPDFAPI_FPDF_PAGE_INCLUDE_CPDF_FORMOBJECT_H_
 #define CORE_FPDFAPI_FPDF_PAGE_INCLUDE_CPDF_FORMOBJECT_H_
 
+#include <memory>
+
 #include "core/fpdfapi/fpdf_page/include/cpdf_pageobject.h"
 #include "core/fxcrt/include/fx_coordinates.h"
 
@@ -27,7 +29,7 @@ class CPDF_FormObject : public CPDF_PageObject {
 
   void CalcBoundingBox();
 
-  CPDF_Form* m_pForm;
+  std::unique_ptr<CPDF_Form> m_pForm;
   CFX_Matrix m_FormMatrix;
 };